SYNTHESIS OF POLYPROPENE-BLOCK-POLY(ETHYLENE-CO-PROPENE) BY SHORT-PERIOD POLYMERIZATION WITH MGCL2-SUPPORTED ZIEGLER CATALYST

被引：19

作者：

MORI, H

YAMAHIRO, M

TASHINO, K

OHNISHI, K

NITTA, KH

TERANO, M

机构：

[1] School of Materials Science, Japan Advanced Institute of Science and Technology, Ishikawa, 923-12, Asahidai 15, Tatsunokuchi

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 1995年 / 16卷 / 04期

关键词：

D O I：

10.1002/marc.1995.030160403

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The short-period polymerization method was successfully applied to the synthesis of a novel diblock copolymer, polypropene-block-poly(ethylene-co-propene). The polymerization was carried out for ca. 0,1 s with a MgCl2-supported Ziegler catalyst. The copolymers obtained showed unimodal curves in gel-permeation chromatography without any peak in the low-molecular-weight region. After extraction with heptane, the fraction of poly(ethylene-co-propene) remained unchanged in the copolymer but disappeared in a commercial so-called block-type copolymer. All the results suggest the formation of polypropene-block-poly(ethylene-co-propene), in which poly(ethylene-co-propene) is chemically linked with polypropene.

引用

页码：247 / 252

页数：6

共 9 条

[1] MONOMER SEQUENCE DISTRIBUTION IN ETHYLENE-PROPYLENE RUBBER MEASURED BY C-13 NMR .3. USE OF REACTION PROBABILITY MODEL [J].

CARMAN, CJ ;

HARRINGTON, RA ;

WILKES, CE .

MACROMOLECULES, 1977, 10 (03) :536-544

[2] ANNEALING OF COMMERCIAL BLOCK POLYPROPYLENE .1. THERMAL AND PHYSICAL-PROPERTIES [J].

ITO, J ;

MITANI, K ;

MIZUTANI, Y .

JOURNAL OF APPLIED POLYMER SCIENCE, 1992, 46 (07) :1221-1233

[3] ANNEALING OF COMMERCIAL BLOCK POLYPROPYLENE .2. BEHAVIOR OF POLY(ETHYLENE-CO-PROPYLENE) COMPONENT [J].

ITO, J ;

MITANI, K ;

MIZUTANI, Y .

JOURNAL OF APPLIED POLYMER SCIENCE, 1992, 46 (07) :1235-1243

[4] C-13 NMR DETERMINATION OF THE ISOTACTICITY OF THE PROPYLENE HOMOPOLYMER PART IN ETHYLENE-PROPYLENE BLOCK-COPOLYMERS [J].

KANEZAKI, T ;

KUME, K ;

SATO, K ;

ASAKURA, T .

POLYMER, 1993, 34 (14) :3129-3131

[5]

KEII T, 1987, MAKROMOL CHEM-RAPID, V8, P583

[6]

KEII T, 1988, TRANSITION METALS OR, P1

[7] CHARACTERIZATION OF PROPYLENE ETHYLENE BLOCK COPOLYMERS USING SOLID-STATE C-13-NMR SPECTROSCOPY [J].

PRASAD, JV .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1992, 30 (09) :2033-2036

[8] C-13 NUCLEAR MAGNETIC-RESONANCE DETERMINATION OF MONOMER COMPOSITION AND SEQUENCE DISTRIBUTIONS IN ETHYLENE-PROPYLENE COPOLYMERS PREPARED WITH A STEREOREGULAR CATALYST SYSTEM [J].

RAY, GJ ;

JOHNSON, PE ;

KNOX, JR .

MACROMOLECULES, 1977, 10 (04) :773-778

[9] STOPPED FLOW POLYMERIZATION OF PROPENE WITH TYPICAL MGCL2-SUPPORTED HIGH-YIELD CATALYSTS [J].

TERANO, M ;

KATAOKA, T ;

KEII, T .

JOURNAL OF MOLECULAR CATALYSIS, 1989, 56 (1-3) :203-210

← 1 →